Weather-stripped sash



Ian. 20, 1931. r LANCASTER 1,789,904

WEATHER STRIPPED SASH Filed D8029, 1928 gnue'nfoz Hea ty? W. Ila/r1535fer Patented Jan. 20, v1931 PATENT OFFICE GEORGE W. LANCASTER, OFRICHMOND, VIRGINIA WEATHER-SHIPPED SASH Application filed December 29,1928. Serial No. 329,154.

I This invention relates to windows of the sl ding sash type, and moreparticularly to windows constructed of sheet metal, and is designed tosimplify the construction of weather stripping therefor which will notonly prevent the passage of air around the sides of the sash, but willalso prevent rattling of the sash in its frame.

In sheet metal window frames it is customary to form the stiles so as toprovide longitudinal grooves adapted to receive, slidably, tonguesprojecting laterally from the vertical sides of the sashes. Heretofore,it has been the practice to arrange substantially U-shaped weatherstrips in such grooves,

andhaving. the ends in spring contact with the sides of these tongues inorder to make airtight joints therewith. These U-shaped weatherstripsarehard to insert in their grooves, andare difiicult to remove forreplacement or repair whenever they get out of order.

In order to simplif the weather-stripping of this type of win ow, I havedevised a weather-strip ada )ted to be applied directly to the tongues othe sliding sash, and to move therewith during its sliding movementlengthwise of the frame.

The object of the present invention therefore, is to provideweather-strips which can be applied directly to the tongues of slidingmetallic sashes, and which can be readily removed therefrom whenever thesash is removed from the window frame.

Another object of the invention is to provide slidin sashes of the typereferred to with detac able weather-strips, which not only prevent'airfrom passing from one side of the sash to the other; but, also, prevent40 rattling of the sash in the window frame.

I Other objects of the invention will become apparent as the detaileddescription thereof proceeds.

In the drawings:

Fig. l is a fragmentary lan view of a sash as mounted in a sheet me a1.window frame,

with part of the sash shown in horizontal ton e 5 b bending the ends guof the strips 10 and '11 into the 95 Fig. 2 is a vertial section takenon the line 2-2 of Fig. l;

Fig. 3 is a fragmentary perspective of the sash provided with theweather-stripping shown in Figs. 1 and 2;

Fig. 4 is a vertical section taken on the line 4-4 of Fig. 2;

Fig. 5 is a broken perspective of a modified form of weather-stripping,adapted to be applied to a sash of the type shown in Fig. 1;

Fig. 6 is a broken perspective of a modified form of the invention shownin Fig. 5; and

Fig. 7 is a horizontal transverse section through part of the stile of awindow frame and of the sash provided with the weatherstripping shown inFig. 6.

Referring to the drawings:

The reference numeral 1 designates a part of the stile of a metallicsash frame, having suitably secured thereto a member 2, and an element3, which are spaced apart from each other to form a groove 4 in whichthe tongue 5 of the sash 6 is adapted to slide.

The structural details of the window frame or the stiles thereofconstitute no part of the presentinvention, except insofar as they mustbe constructed to provide a groove 4 in which the tongue 5 of the sashis mounted to slide. The groove 4 is made" wider than the tongue 5 inorder that yielding metallic 'weather-strips may be connected to thetongue to slide in yielding contact with the opposite sides of thegroove 4 to prevent rats tling of the sash and the entrance of air intoand around the several elements of the stile of the frame.

As shown in Fig. 1, the tongue 5 1s formed of the U-shaped extension ofthe side of the sash 6, and legs 7 and 8 of this extension are spacedapart to form a groove 9. The Weather-stripping for this tongue 5comprises two strips 10 and 11 made of spring metal, and adapted to besecured to the 12 and 13, respectively, groove9 at the end of the tongue5. The lower ends of the strips 10 and 11 are similarly secured to thelower end of the tongue 5 and thereby prevent it from length-.

wise movement on the tongue. Each of the edges of which seat againstshoulders 16 and 17, constituted by the junction of the tongue 5 withthe stile of the sash 6.

The weather-strips 10 and 11 are of such width that when the edges ofthe portions 14 and 15 seat against shoulders 16 and 17 the bent downends 12. and 13 contact with the outer end of the groove 9 and preventthe weather-strips from sliding laterally on tongue 5 and to be suitablysecured thereto by suitable rivets or other fastening devices passingthrough the strip 18 and tongue 5.

The strip 18 also comprises two longitudinally bowed parts 19 and 20which servethe same purpose and operate in the same manner as the bowedparts 14 and 15 of the strips 10 and 11. The main'difi'erence in thiscase is that the strip 18 is one-piece and is intended to be fastened tothe tongue 5 by separate fastening means.

In the modification shown in Figs. 6 and 7 a substantially U-shapedstrip 21 has the edges thereof provided with a double bowed part orcorrugations. This modification requires acorresponding modification inthe tongues of the sash to which it may be applied, and is adapted to beapplied directly to the sash or to be secured independently in thegroove of the sash frame.

As shown in Figs. 6 and 7 the U-shaped weather-strip 21 has the leg 22thereof provided with bowed parts 23 and 24, and the leg 25 thereof isprovidedwith bowed parts 26 and. 27. The sash 28 is provided with atongue 29 having the legs 30 and 31 thereof separated by a groove 32.The legs 30 and 31 are provided with bowed parts 33 and 34,respectively, which are adapted to receive and hold, frictionally, thebowed parts 23 and '26 to prevent lateral movement of the weather-strip21 on the tongue 28.

The strip 21 may be secured against longitudinal movement on the tongue29 by riveting through the fiat portions thereof or by providing theupper and lowerends thereof with tabs, adapted to be bent into thegroove 32 for securing them to the sash proper.

It will be apparent from the foregoing disclosure that I have providedsliding sashes of the metallic type with weather-strips adapted to bemoved with the sashes proper, and which not only prevent passage of theair around the edges of the sashes but also prevent rattling of the sashin the window frame.

What I claim is: v 1. A window frame having grooves in the stilesthereof, a sash having tongues slidable in said grooves, andweather-strips secured to the opposite sides of said tongues andslidable therewith in weather-tight contact with the opposite edgesofsaid grooves.

2. A window frame having grooves, in the stiles'thereof, a sash havingtongues slidable in said grooves, weather-stripping secured on each sideof said tongues and having parts bowed lengthwise of said tongue toslide in weather-tight yielding contact with the opposite edges of saidgrooves.

3. A sash frame having a groove ina stile thereof, a sash slidable alongsaid stile, a U-shaped tongue, extending from a stile of said sash into.said groove, a weather-strip extending along one side of said tongue andhaving the ends thereof bent over the ends of one leg of said tongue,said strip having a part bowed lengthwise and outwardly from said leg toslide in yielding weathertight contact against one side of said groove.

In testimony whereof I aiiix my signature.

GEORGE W. LANCASTER.

